Chapter 2: Main Application
91
• For information about inputting and editing list data using the Stat Editor, see Chapter 7.
u
To use Stat Editor to recall a LIST variable created in the work area
0240
Continuing from example
0239
, to use Stat Editor to recall list variable “test”, which was created in the
work area
Using the Geometry Window
When there is a Geometry window on the display, you can drag values and expressions to the Geometry
window to draw the graph or figure of the value or expression. You can also drag a figure from the Geometry
window to the work area, which displays the corresponding expression or value.
u
To drag an expression from the work area to the Geometry window
0241
To input the expression
x
2
/5
2
+
y
2
/2
2
= 1 in the work area, and then drag it to the Geometry window
Tip:
The following table shows the types of expressions you can drop into the Geometry window. When the expression is
not recognized, Geometry displays it as text.
Dropping this into the Geometry window:
Displays this:
Linear equation in
x
and
y
An infinite line
Equation of circle in
x
and
y
A circle
Equation of ellipse in
x
and
y
An ellipse
Equation of hyperbola in
x
and
y
A hyperbola
2-dimensional vector (2 rows × 1 column format)
A point
Equation
y
=
f
(
x
)
A curve
2 ×
n
matrix,
n
t
3
A polygon (each column represents a vertex of the
polygon)
n
× 2 matrix,
n
t
3
An open polygon
u
To drag a figure from the Geometry window to the work area
0242
To drag a point, circle, point and its image from the Geometry window to the work area
• For details about Geometry window operations, see Chapter 8.
Tip:
The following shows what happens when you drag a figure from the Geometry window to the work area.
Dropping this into the work area:
Displays this:
Point
Coordinates as a vector (2 × 1 matrix)
Line
Equation of the line
Vector
An ordered pair (head of vector assuming the tail is at the
origin)
Circle, Arc, Ellipse, Function, or Curve
Corresponding equation
Polygon
2 ×
n
matrix
Open Polygon (Created by Animation)
n
× 2 matrix
Line Pair
Simultaneous equations for the pair
A point and its image under a transformation
Matrix expression for the transformation
